Develop Reference

AppCompat v7 not being referenced properly

I'm new to Xamarin Android. I've installed the AppCompatv7 Support Library from the GetComponents option.
But whenever I try and do anything with it, I get no intellisense, like it isn't actually added to the project. Like below:
When I look more into the assembly it comes up with an option like below, saying it might not be installed. But as you can see from the picture, it is installed under my references.
If I click Add Package in the below picture, nothing happens.
When I compile the code, it can't find functions in the ActionBarActivity base class, so I'm guessing it's not adding it properly into my project.
Anyone know why this is happening? Cheers

When I compile the code, it can't find functions in the ActionBarActivity base class, so I'm guessing it's not adding it properly into my project.
ActionBarActivity is obsolete.
To use Android.Support.V7.Widget.Toolbar, after installing the Xamarin.Android.Support.v7.AppCompat package, you can simply inherit your MainActivity from AppCompatActivity instead of ActionBarActivity.
Then for example my toolbar is like this:
<android.support.v7.widget.Toolbar
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_height="wrap_content"
android:minHeight="?attr/actionBarSize"
android:background="?attr/colorPrimary"
android:layout_width="match_parent">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/toolbartitile"
android:text="Kodej" />
</android.support.v7.widget.Toolbar>
Include this toolbar in Main layout like this:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<include android:id="#+id/toolbar"
layout="#layout/mytoolbar" />
</LinearLayout>
And finally in your MainActivity:
public class MainActivity : AppCompatActivity
{
protected override void OnCreate(Bundle bundle)
{
base.OnCreate(bundle);
// Set our view from the "main" layout resource
SetContentView(Resource.Layout.Main);
var toolbar = FindViewById<Android.Support.V7.Widget.Toolbar>(Resource.Id.toolbar);
SetSupportActionBar(toolbar);
}
}
You just need to reference Android.Support.V7.App in your code:
using Android.Support.V7.App;
All references in my demo:
If you've installed the libs correctly and there is no no intellisense, you can try to rebuild your app, close and reopen your VS.

Install it using the NuGet Command Console :
Install-Package Xamarin.Android.Support.v7.AppCompat -Pre

youtube android api error render on android studio

I program an app android to view youtube . I have a problem with android studio. I was copy YouTubeAndroidPlayerApi.jar to folder libs and code in java is fine , but in the xml is has error
Rendering Problems The following classes could not be found com.google.android.youtube.player.YouTubePlayerView (Fix Build Path, Create Class)
Tip: Try to build the project.
I was try to build project but it have the same error. Here is the code
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
android:layout_height="match_parent" android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
android:paddingBottom="#dimen/activity_vertical_margin" tools:context=".MainActivity">
<com.google.android.youtube.player.YouTubePlayerView
android:id="#+id/youtube_player"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#fff"
android:padding="5dp" />
Please help :D Tks all

I would recomend you adding the fragment programatically in your code like this:
YouTubePlayerSupportFragment videoStreamingPlayerFragment = YouTubePlayerSupportFragment.newInstance();
videoStreamingPlayerFragment.initialize(mDevKey, new PlayerInitializedListener());
FragmentTransaction ft = getChildFragmentManager().beginTransaction();
ft.replace(R.id.Container, videoStreamingPlayerFragment);
ft.commitAllowingStateLoss();
in case you want to use the View instead of the fragment you could add it with the function addView:
YouTubePlayerView youtubeView = new YouTubePlayerView(this);
youtubeView.initialize(mDevKey, new PlayerInitializedListener());
FrameLayout youtubeContainer = (FrameLayout) findViewById(R.id.YoutubeContainer);
youtubeContainer.addView(mYoutubeView);
The activity where you do the operation must extend YouTubeBaseActivity

loadUrl() crashes with CordovaWebView

I know that there are some posts here but they are not solving my problem.
The thing is:
I have a Cordova App (android platform). In my activity_main.xml I have declared a CordovaWebView and I want to call loadUrl() method to load a website that is in my assets folder. When I invoke the method the app crashes showing "UNFORTUNATELY, MyApp HAS STOPPED".
STRANGE THINGS I HAVE NOTICED:
If I emulate using a device with API 10 or 16, this WORKS FINE. If I test it with 17 it does NOT WORK.
If I don't use CordovaWebView and directly invoke: this.loadUrl("file:///android_asset/www/index.html"); it works fine, but it's like I am not using the layouts I define (so I don't have my ad banner).
Any ideas about this problem??
Thanks!
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:ads="http://schemas.android.com/apk/lib/com.google.ads"
android:id="#+id/layout_home"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<LinearLayout
android:id="#+id/layout_body"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
android:layout_above="#+id/layout_banner"
android:background="#color/abc_search_url_text_normal">
<org.apache.cordova.CordovaWebView
android:id="#+id/webview"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:background="#color/common_signin_btn_dark_text_disabled" />
</LinearLayout>
<RelativeLayout
android:id="#+id/layout_banner"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:background="#color/wallet_hint_foreground_holo_dark">
</RelativeLayout>
</RelativeLayout>
MainAcitivy.java
public class MainActivity extends CordovaActivity {
CordovaWebView cwv;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
..LOAD ADVERTISEMENT INTO LAYOUT_BANNER...
cwv = (CordovaWebView) findViewById(R.id.webview);
cwv.getSettings().setJavaScriptEnabled(true);
cwv.loadUrl("file:///android_asset/www/index.html");
}

look the doc : https://cordova.apache.org/docs/en/3.5.0/guide_platforms_android_webview.md.html
cwv = (CordovaWebView) findViewById(R.id.cordovaview);
Config.init(this);
cwv.loadUrl(Config.getStartUrl());
you can see a sample here : https://github.com/dam1/sample-android-cordova-webview

Why do you need activity_main.xml and all android stuff, just start a fresh project using cordova command line. You don't need any xml of that sort in standard cordova project.
You've got cordova plugins for displaying admob ads inside cordova web view, see http://plugreg.com/search?q=admob

how to integrate pull to refresh feature to android app

I made a android app in that it has a listview with rss feeds .so I am trying to implement pull to refresh in my app for loading but I searched for a library I am getting link of [https://github.com/johannilsson/android-pulltorefresh] this .But I don't know How to integrate this library to my android app and I didn't find any jar related to this.please help me.

Recently, Google has implemented PullToRefreshView into its support v4 library. You can find at SwipeRefreshLayout
The implementation is very simple.
<android.support.v4.widget.SwipeRefreshLayout
android:id="#+id/swipe_view"
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="${packageName}.${activityClass}">
<ListView
android:id="#+id/list_view"
android:scrollbarStyle="outsideInset"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
</android.support.v4.widget.SwipeRefreshLayout>
In your class, you can implement something like this.
mSwipeView.setColorScheme(android.R.color.holo_blue_bright, android.R.color.holo_green_light,
android.R.color.holo_red_light, android.R.color.holo_orange_light);
mSwipeView.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
#Override public void onRefresh() {
// Your action here
}
});
And cancel it by
mSwipeView.setRefreshing(false);

Android;Body of ProgressDialog?

I saw this source as layout of AlertDialog in res\layout folder of Android SDK:
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<LinearLayout android:id="#+id/body"
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:baselineAligned="false"
android:paddingLeft="8dip"
android:paddingTop="10dip"
android:paddingRight="8dip"
android:paddingBottom="10dip">
<ProgressBar android:id="#android:id/progress"
style="#android:style/Widget.ProgressBar"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:max="10000"
android:layout_marginRight="12dip" />
<TextView android:id="#+id/message"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical" />
</LinearLayout>
</FrameLayout>
I tried to find TextView that it's id is "message" like this:
TextView tvMessage = (TextView)dialog.findViewById(android.R.id.message);
It works fine.Then I tried to find LinearLayout that it's id is "body" like this:
LinearLayout body = (LinearLayout)dialog.findViewById(android.R.id.body);
But eclipse show this error:
body cannot be resolved or is not a field
This is snippet code:
ProgressDialog dialog = new ProgressDialog(WriteOpinionActivity.this);
dialog.setMessage("some text");
dialog.show();
TextView tvMessage = (TextView)dialog.findViewById(android.R.id.message);
LinearLayout body = (LinearLayout)dialog.findViewById(android.R.id.body);
Why this error occurs and how I can reach "body"?

Basically, not all resources are accessible to You from platforms res folder.
E.g. I'm able to find #+id/message in global_actions_item.xml, usb_storage_activity.xml, alert_dialog_holo.xml, js_prompt.xml, progress_dialog_holo.xml, progress_dialog.xml, alert_dialog.xml (for API 17), and so, there's no warranty that You get id which defined in progress_dialog.xml (it can be defined in another file and just because of the same name You is able to find it in progress dialog).
Actually, public resources are defined here, however, it looks quite outdated, so some resources might be missed. Checkout these questions about lists of all accessible resources: 1 and 2

Use this instead.
TextView tvMessage = (TextView)dialog.findViewById(R.id.message);
LinearLayout body = (LinearLayout)dialog.findViewById(R.id.body);
You weren't actually using android.R.id.message in the first place. #+id/message means you are creating a new id resource named message.
To use an id that exists in the Android framework, you can see here that you use #android:id/progress. And in source, you use it like you had it: android.R.id.progress.
Otherwise, use android:id="#=id/myIdentifier" in XML and
findViewById(R.id.myIdentifier) in code.
http://developer.android.com/guide/topics/resources/overview.html